Calculation method, calculation device and vehicle of accelerator pedal torque

A technology of accelerator pedal and calculation method, which is applied in the field of automobile control, can solve the problems such as the change of torque cannot keep up, the vehicle driving is not smooth, and the driving feeling of the vehicle is poor, so as to achieve good torque transition and smoothness, improve driving quality, The effect of improving acceleration responsiveness

Active Publication Date: 2022-06-17
DONGFENG MOTOR GRP
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  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a calculation method, a calculation device, and a vehicle for accelerator pedal torque, so as to solve the problem of vehicle driving irregularities and torque changes that cannot keep up with the driver's desired acceleration intention in the related art due to torque irregularities. Problems with poor driving feeling and poor drivability of the vehicle

Method used

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  • Calculation method, calculation device and vehicle of accelerator pedal torque
  • Calculation method, calculation device and vehicle of accelerator pedal torque
  • Calculation method, calculation device and vehicle of accelerator pedal torque

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Embodiment Construction

[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0044] After repeated tests and verifications, the applicant found that according to the accelerator pedal torque map provided in the prior art, since the energy recovery torque is not considered, when the accelerator pedal is released, the vehicle may not drive due to torque discontinuity. At the same time, since the acceleration ...

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Abstract

This application relates to a calculation method, a calculation device and an automobile of an accelerator pedal torque. Firstly, different accelerator pedal openings are acquired and sorted in ascending order, and then combined with the sliding energy recovery torque and road resistance, the accelerator pedal opening is calculated as 0%, the expected acceleration at different vehicle speeds, based on the expected acceleration when the accelerator pedal opening is 0%, and the acceleration change rate, calculate the expected acceleration at other accelerator pedal openings, and finally based on different accelerator pedal openings The expected acceleration at different vehicle speeds, the road resistance at different vehicle speeds, and the accelerator pedal torque at different vehicle speeds at different accelerator pedal openings are calculated. The present application can solve the problem in the related art that the vehicle driving is not smooth due to the torque irregularity and the change of the torque cannot keep up with the driver's expected acceleration intention, resulting in poor driving feeling and drivability of the vehicle.

Description

technical field [0001] The present application relates to the technical field of automobile control, and in particular, to a calculation method, calculation device and automobile of accelerator pedal torque. Background technique [0002] With the deepening of the energy crisis and the continuous improvement of environmental protection concepts, new energy vehicles have developed rapidly. [0003] New energy vehicles include hybrid and pure electric vehicles. The power system of a hybrid vehicle includes an engine and a drive motor, while the power system of a pure electric vehicle does not include an engine but only a drive motor. [0004] The inventor's research found that, whether it is a hybrid vehicle with two drive systems or a pure electric vehicle with only a drive motor, there are many deficiencies in the technology for calculating the accelerator pedal torque by using the existing accelerator pedal torque map. The torque of the accelerator pedal is discontinuous, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W40/00B60L3/12
CPCB60W40/00B60L3/12B60W2540/10
Inventor 彭红涛梁缘李凌阳范超黄一凯
Owner DONGFENG MOTOR GRP
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